Bicipital Groove Latissimus Dorsi
Latissimus spirals from the back to the front with the lowest fibers of origin ending up highest.
Bicipital groove latissimus dorsi. Nerve root of latissimus dorsi. Bench press it s association with the latissimus dorsi. The teres major inserts on the medial lip of the groove. It runs obliquely downward and ends near the junction of the upper with the middle third of the bone.
Insertion of latissimus dorsi. Nerve root of rhomboid minor. Nerve root of deltoid. Nerve supply the thoracodorsal nerve c6 c7 c8 supplies the muscle.
It inserts here on the floor of the bicipital groove. Once the arm goes behind the torso the lats perform flexion of the shoulder. It contains the tendon of the long head of the biceps brachii muscle which is ensheathed in a synovial reflection of the. It ends as a flattened tendon in front of the attachment of teres major to the floor of the bicipital groove of the humerus.
Action the action of latissimus dorsi are extension of arm at shoulder. Bicipital groove of right humerus. The bicipital groove also known as the intertubercular sulcus or sulcus intertubercularis is the indentation between the greater and lesser tuberosities of the humerus that lodges the biceps tendon. The latissimus dorsi is a large powerful muscle on the back of the torso.
The latissimus dorsi insert on the medial inner side of the humerus this orientation allows for the latissimus dorsi to replace its function. Internal rotation of arm at shoulder. This muscle inserts on the intertubercular groove of the humerus which is. Information on the bony attachment footprint of these musc.
The latissimus dorsi is a thin wide triangular shaped muscle located at each side of the back right under each arm. The bicipital groove of the humerus. Due to its size and power latissimus has the potential to affect a wide range of actions in the body. Teres major muscle tm and latissimus dorsi muscle ld are frequently used in muscle transfers around the shoulder girdle.
Nerve root of supraspinatus. It is the lateral wall of the axilla. The insertion of the latissimus dorsi is found along the floor of the bicipital groove. Nerve root of levator scapulae.
Adduction of arm at shoulder. Insertion of levator scapulae. Medial border of scapula. Teres major often gets discussed along with the latissimus muscle because it s a small muscle whose main job is to assist latissimus in some of its actions.
Some authors have suggested harvesting techniques in which the muscle is detached in continuity with a bone segment. It runs obliquely downward and ends near the junction of the upper with the middle third of the bone. Medial border of scapula. To get to its insertion the latissimus tendon has to spiral around teres major.
Bicipital groove of humerus. The insertion of the latissimus dorsi is found along the floor of the bicipital groove. The bicipital groove is typically 4 6 mm deep 1. It is the lateral wall of the axilla.